Patents by Inventor Chang Hun Kum

Chang Hun Kum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for manufacturing stent for inhibiting webbing phenomenon
    Patent number: 11331416
    Abstract: Provided is a method for manufacturing a stent, including: coating a coating material on a stent; and drying the stent at a temperature in the range of from 40° C. to 150° C., and the coating and the drying are simultaneously performed.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: May 17, 2022
    Assignee: OSSTEM CARDIOTEC CO., LTD.
    Inventors: Chang Hun Kum, Kwang Soo Kim, Bunam Chang, Jae Hwa Cho, Sung Nam Kang, Gyu Hyun Jin, Hye Young Kwon, Ji Seon Hong, Saet Byeol Kim
  • METHOD FOR MANUFACTURING STENT FOR INHIBITING WEBBING PHENOMENON
    Publication number: 20210308340
    Abstract: Provided is a method for manufacturing a stent, including: coating a coating material on a stent; and drying the stent at a temperature in the range of from 40° C. to 150° C., and the coating and the drying are simultaneously performed.
    Type: Application
    Filed: May 27, 2019
    Publication date: October 7, 2021
    Inventors: Chang Hun KUM, Kwang Soo KIM, Bunam CHANG, Jae Hwa CHO, Sung Nam KANG, Gyu Hyun JIN, Hye Young KWON, Ji Seon HONG, Saet Byeol KIM
  • Hybrid stent
    Patent number: 10624769
    Abstract: A hybrid stent includes multiple main cells aligned in a spiral shape and including multiple first link units which are aligned diagonally and spaced at a predetermined distance from each other and multiple second link units which connect adjacent first link units among the multiple first link units and are spaced at a predetermined distance from each other, and one or more open cells adjacent to the multiple main cells in a longitudinal direction and aligned in a spiral shape.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 21, 2020
    Assignees: CG BIO CO., LTD., THE ASAN FOUNDATION
    Inventors: Han Ki Kim, Hyun Seung Ryu, Jun Hyuk Seo, Jun Kyu Park, Seok Beom Song, Chang Hun Kum, Jae Hwa Cho, Gyu Hyun Jin, Deok Hee Lee, Seon Moon Hwang, Tae Il Kim, Ok Kyun Lim, Ga Young Lee
  • Biomedical implants comprising surface-modified metal particles and biodegradable polymers, its use for suppressing inflammation, and preparation method thereof
    Patent number: 10106402
    Abstract: Disclosed are biomedical implants comprising surface-modified metal particles and biodegradable polymers; its use for suppressing inflammation; and a method for preparing a biomedical material, comprising: (a) modifying surface of basic metal particles with a polymer to obtain surface-modified metal particles; and (b) mixing the surface-modified metal particles with a biodegradable polymer, followed by manufacturing a biodegradable biomedical implant, or coating the resulting mixture on a conventional biomedical implant.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: October 23, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Keun Han, Kwi Deok Park, Jong Hee Kang, Bong Soo Lee, Ji Yeon Choi, Chang Hun Kum
  • HYBRID STENT
    Publication number: 20180140443
    Abstract: A hybrid stent includes multiple main cells aligned in a spiral shape and including multiple first link units which are aligned diagonally and spaced at a predetermined distance from each other and multiple second link units which connect adjacent first link units among the multiple first link units and are spaced at a predetermined distance from each other, and one or more open cells adjacent to the multiple main cells in a longitudinal direction and aligned in a spiral shape.
    Type: Application
    Filed: September 21, 2015
    Publication date: May 24, 2018
    Inventors: Han Ki KIM, Hyun Seung RYU, Jun Hyuk SEO, Jun Kyu PARK, Seok Beom SONG, Chang Hun KUM, Jae Hwa CHO, Gyu Hyun JIN, Deok Hee LEE, Seon Moon HWANG, Tae Il KIM, Ok Kyun LIM, Ga Young LEE
  • Biomedical implants comprising surface-modified ceramic particles and biodegradable stereo complex polymers, its use for suppressing inflammation and improvement of mechanical property, and preparation method thereof
    Patent number: 8852624
    Abstract: A biomedical implant according to this invention comprises ceramic complex, which includes a surface-modified basic ceramic particles, which are basic ceramic particles modified their surface with first biodegradable polymers, and the second biodegradable polymers. The first and second biodegradable polymer are combined each other and form a stereo complex. The biomedical implant has a superior effect to suppress inflammation caused by degradation of biodegradable polymers with improving its mechanical property.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: October 7, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Keun Han, Yoon Ki Joung, Jong Hee Kang, Ji Yeon Choi, Chang Hun Kum
  • BIOMEDICAL IMPLANTS COMPRISING SURFACE-MODIFIED CERAMIC PARTICLES AND BIODEGRADABLE STEREO COMPLEX POLYMERS, ITS USE FOR SUPPRESSING INFLAMMATION AND IMPROVEMENT OF MECHANICAL PROPERTY, AND PREPARATION METHOD THEREOF
    Publication number: 20130280335
    Abstract: A biomedical implant according to this invention comprises ceramic complex, which includes a surface-modified basic ceramic particles, which are basic ceramic particles modified their surface with first biodegradable polymers, and the second biodegradable polymers. The first and second biodegradable polymer are combined each other and form a stereo complex. The biomedical implant has a superior effect to suppress inflammation caused by degradation of biodegradable polymers with improving its mechanical property.
    Type: Application
    Filed: October 2, 2012
    Publication date: October 24, 2013
    Applicant: Korea Institute of Science and Technology
    Inventors: Dong Keun HAN, Yoon Ki JOUNG, Jong Hee KANG, Ji Yeon CHOI, Chang Hun KUM
  • BIOMEDICAL IMPLANTS COMPRISING SURFACE-MODIFIED METAL PARTICLES AND BIODEGRADABLE POLYMERS, ITS USE FOR SUPPRESSING INFLAMMATION, AND PREPARATION METHOD THEREOF
    Publication number: 20120070650
    Abstract: Disclosed are biomedical implants comprising surface-modified metal particles and biodegradable polymers; its use for suppressing inflammation; and a method for preparing a biomedical material, comprising: (a) modifying surface of basic metal particles with a polymer to obtain surface-modified metal particles; and (b) mixing the surface-modified metal particles with a biodegradable polymer, followed by manufacturing a biodegradable biomedical implant, or coating the resulting mixture on a conventional biomedical implant.
    Type: Application
    Filed: January 6, 2011
    Publication date: March 22, 2012
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Keun Han, Kwi Deok Park, Jong Hee Kang, Bong Soo Lee, Ji Yeon Choi, Chang Hun Kum